[FFmpeg-user] Multiple Streams using ffmpeg (got 2 working, need 4)

[Rad J]

Hello There,

I would like to stream 4 cams to YouTube using ffmpeg.

I was able to get 2 to work as follows:

ffmpeg -rtsp_transport tcp
-i "rtsp://xxxx:***@10.1.10.125:554/cam/realmonitor?channel=1&subtype=0"
-i "rtsp://xxxx:***@10.1.10.125:554/cam/realmonitor?channel=2&subtype=0"
-f lavfi -i anullsrc
-filter_complex "
[0:v] setpts=PTS-STARTPTS, scale=800x448,setsar=1[upperleft];
[1:v] setpts=PTS-STARTPTS, scale=800x448,setsar=1[upperright];
[upperleft][upperright]hstack[base]"
-map [base] -map 2 -f flv rtmp://
x.rtmp.youtube.com/live2/xxxx:xxxx-xxxx:xxxx

But how do I add two more below those two?

You can view the two here:
https://www.youtube.com/channel/UCxyIPYgLqtqLl2one2J7goQ/live

Thanks,
Zarks
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[Moritz Barsnick]

Hi Rad,

Post by Rad J
I would like to stream 4 cams to YouTube using ffmpeg.
ffmpeg -rtsp_transport tcp
-f lavfi -i anullsrc
-filter_complex "
[0:v] setpts=PTS-STARTPTS, scale=800x448,setsar=1[upperleft];
[1:v] setpts=PTS-STARTPTS, scale=800x448,setsar=1[upperright];
[upperleft][upperright]hstack[base]"
-map [base] -map 2 -f flv rtmp://
x.rtmp.youtube.com/live2/xxxx:xxxx-xxxx:xxxx
But how do I add two more below those two?

Untested:

ffmpeg -rtsp_transport tcp
-i "rtsp://xxxx:***@10.1.10.125:554/cam/realmonitor?channel=1&subtype=0"
-i "rtsp://xxxx:***@10.1.10.125:554/cam/realmonitor?channel=2&subtype=0"
-i "rtsp://xxxx:***@10.1.10.125:554/cam/realmonitor?channel=3&subtype=0"
-i "rtsp://xxxx:***@10.1.10.125:554/cam/realmonitor?channel=4&subtype=0"
-f lavfi -i anullsrc
-filter_complex "
[0:v] setpts=PTS-STARTPTS, scale=800x448,setsar=1[upperleft];
[1:v] setpts=PTS-STARTPTS, scale=800x448,setsar=1[upperright];
[2:v] setpts=PTS-STARTPTS, scale=800x448,setsar=1[bottomleft];
[3:v] setpts=PTS-STARTPTS, scale=800x448,setsar=1[bottomright];
[upperleft][upperright]hstack[topbase];
[bottomleft][bottomright]hstack[bottombase];
[topbase][bottombase]vstack[base]"
-map [base] -map 4 -f flv rtmp://x.rtmp.youtube.com/live2/xxxx:xxxx-xxxx:xxxx

Post by Rad J
https://www.youtube.com/channel/UCxyIPYgLqtqLl2one2J7goQ/live

No, I can't. It's not online.

Moritz
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[Rad J]

Hi Mortiz,

That worked but I'm getting lot's of errors while streaming and youtube is
complaining about the frames and format, how can I adjust those?

[image: image.png]

https://www.screencast.com/t/Jdr7TdkL5

I have also changed the resolution to 1080p and it looks nice now:

ffmpeg -rtsp_transport tcp
-i "rtsp://xxx:***@10.1.10.125:554/cam/realmonitor?channel=1&subtype=0"
-i "rtsp://xxx:***@10.1.10.125:554/cam/realmonitor?channel=2&subtype=0"
-i "rtsp://xxx:***@10.1.10.125:554/cam/realmonitor?channel=3&subtype=0"
-i "rtsp://xxx:***@10.1.10.125:554/cam/realmonitor?channel=4&subtype=0"
-f lavfi -i anullsrc
-filter_complex "
[0:v] setpts=PTS-STARTPTS, scale=1920x1080,setsar=1[upperleft];
[1:v] setpts=PTS-STARTPTS, scale=1920x1080,setsar=1[upperright];
[2:v] setpts=PTS-STARTPTS, scale=1920x1080,setsar=1[bottomleft];
[3:v] setpts=PTS-STARTPTS, scale=1920x1080,setsar=1[bottomright];
[upperleft][upperright]hstack[topbase];
[bottomleft][bottomright]hstack[bottombase];
[topbase][bottombase]vstack[base]"
-map [base] -map 4 -f flv rtmp://
x.rtmp.youtube.com/live2/xxxx:xxxx-xxxx:xxxx

Post by Rad J
Hello There,
I would like to stream 4 cams to YouTube using ffmpeg.
ffmpeg -rtsp_transport tcp
-f lavfi -i anullsrc
-filter_complex "
[0:v] setpts=PTS-STARTPTS, scale=800x448,setsar=1[upperleft];
[1:v] setpts=PTS-STARTPTS, scale=800x448,setsar=1[upperright];
[upperleft][upperright]hstack[base]"
-map [base] -map 2 -f flv rtmp://
x.rtmp.youtube.com/live2/xxxx:xxxx-xxxx:xxxx
But how do I add two more below those two?
https://www.youtube.com/channel/UCxyIPYgLqtqLl2one2J7goQ/live
Thanks,
Zarks

[Rad J]

Sorry, wrong image here the correct one:

https://www.screencast.com/t/xrDfuJGtsT

And Thank you!
-Rad

Post by Rad J
Hi Mortiz,
That worked but I'm getting lot's of errors while streaming and youtube is
complaining about the frames and format, how can I adjust those?
[image: image.png]
https://www.screencast.com/t/Jdr7TdkL5
ffmpeg -rtsp_transport tcp
-f lavfi -i anullsrc
-filter_complex "
[0:v] setpts=PTS-STARTPTS, scale=1920x1080,setsar=1[upperleft];
[1:v] setpts=PTS-STARTPTS, scale=1920x1080,setsar=1[upperright];
[2:v] setpts=PTS-STARTPTS, scale=1920x1080,setsar=1[bottomleft];
[3:v] setpts=PTS-STARTPTS, scale=1920x1080,setsar=1[bottomright];
[upperleft][upperright]hstack[topbase];
[bottomleft][bottomright]hstack[bottombase];
[topbase][bottombase]vstack[base]"
-map [base] -map 4 -f flv rtmp://
x.rtmp.youtube.com/live2/xxxx:xxxx-xxxx:xxxx

Post by Rad J
Hello There,
I would like to stream 4 cams to YouTube using ffmpeg.
ffmpeg -rtsp_transport tcp
"
"
-f lavfi -i anullsrc
-filter_complex "
[0:v] setpts=PTS-STARTPTS, scale=800x448,setsar=1[upperleft];
[1:v] setpts=PTS-STARTPTS, scale=800x448,setsar=1[upperright];
[upperleft][upperright]hstack[base]"
-map [base] -map 2 -f flv rtmp://
x.rtmp.youtube.com/live2/xxxx:xxxx-xxxx:xxxx
But how do I add two more below those two?
https://www.youtube.com/channel/UCxyIPYgLqtqLl2one2J7goQ/live
Thanks,
Zarks